Railway-track construction



ay 192'!v R. J. WELLS 1,627,217

RAILWAY TRACK CONSTRUCTION Filed Aux. 6. 1925 .lll

Patented May 3, 1927.

tetra-l wotnsoaoesaomome.

Miriam-TRACK oonsoeooriolt @time @1911, August 69 192,5. Smalto. leso...

My invention relates torailavay tiesand more particularly to furtherimprovement of"tl`1e`c`onstruction disclosed in Illy-'cepend-4 ingapplicationsfor Letters Patent, No. 693,000, filed February 15, 1924,since maturi-d `int@ Patent No. 1,528,999 dated Marelli, i0, 11925 miserial Nidi 7,909, sied:

February '9, i925. Vllllfeas both prior constructions referred to,`contemplate the ein: ploynient offa resilient body ofseinifluidorplasticl character necessitating the 'ernploy ment'of a receptacle orcontainer to, confine` the cushion material, the present inventiondiffers therefroni by utilizing a solidified foi-in of resilient cushionmaterial* which 'readily' retain its forrnuntil enibeddedl'iii the`cncrete road` bed' or "other" supper@ thereby eliminating the necessityfor a 'special receptacle.

"In the'present construction there are con tenlipl'ated 'spaced bloctksoff resilient mate'- rial,such as asphalt intermixedwith a filler ofy1asbestos, saw 1dust orf other iibrousor'gran'- ular Inaterialfenablingthe asphalt Inaterialj to be. Inoldedi intor form retaining bodies, suchbloeksbeing interconnected" by trans! versely arranged tie, bars to!vWhirchthe blocks are 'connected by bolts which also. serve to, secyuretopplates or sleeperplatesfof'metal restino upon the blocks'of'resilient'material;`

and tie -tracky rails" vvhich' rest'V upon the:`

plates. The asseinbledslrieleton tie issuspended from the tracle railsover the excavated road bed or otherwise` supportedjin elevatedposition, and1 plastic concrete4 is poured around andfbeneath the tiestruc7' tie therein. Y Y

' In pouring the concrete about theresilient supporting; lg'loclgs` andtie "bars, the blocks ture, thus 'embedding the spaced' forni' 'their`ovv'n cavities or recesses. in lthe concrete 4body whichconfoi1ns"closely'andaccurately to the blocks.

The inolded,y blocks are coniinedi to s uch cavities Aor recessesl ofthe concrete fbody the overlying` sleeper or top v'pl-fates which form'closure lids 'therefor,.` The moldedf bodies resilient-` Wliic'li`arewnt Sohjoloetly lzosolarlt to. 'withstood bho Pros: sure, 'shock and'vibration of tr uprofhofl hools.Wthoutfollslort integration, thoughisufllolohtliflstloos.

hold their forni vvliile beinf i einbied'dedlff'the oohorole'are thus;within the. ooh? @roto boclyagalnsl dsrlaoomoal; distortion,

*o over the:

coolers or change ofform. rPhe cover plate may be "though notnecessarily, peripherally flanoed to over and enclose thetop mai# girls"of the moldedl resilient-- block. This a Vsimple'l flat plate of'lnetahbut is'preferl sleeper" plate being4 embedded substantially fkflush with* `the top" surface "of the concrete bodyeffectually-prevents theoozing` or es` cape. of' theresilient materialfro'rnk therecesses orpoclets formed'I inthe concrete.V

tho. S'hoolill'ol as. Woll als lh@ hoffis fled modo oliosta allori ofNSuolo. railway tios Wllorolor they, ifill hotohly bo oholioonofd inconstrue tion, bol'willf hof more olfolohl inteso, ofY lh? oroaooololhrelolllyhehol Woerrs qualities.' Y

oooivfol lo) formi aooommoflitlhs an, ih'- oroaoool quantity 'of 'ooshoomlofl, and uollioly tosotoutofropor A 'further ohio'ol of Athoinvention. lo, lo insure hh'o roololil matriel bolos CloSoly.

oon'fhodh.thooonorolehooly by melons tho l oohoroto" body Conform.'Closely ood @ooorately to, the body of resilient llllterialfenrbeddedthoglolofllrlhfof oloj'ootof' tho invention. lo to. facilitate themanufacture andfalso 'theinsl Sllllotloh ofsoohtos i With lhoohov'o.primary and other inol- Clsnlel: obioots in. v'ow 'ois Will more folly'appear in the specification, the'invention`r consists of ,thefeatures ofconstruction, the Potts and, Combinations thereof, and the mde of;operation or, their equivalents, as

hpe'ihaftolt'flosoibodjoool sot. tori-h in, the

' Similarv Chari t. While the ho. oonstruoti'oli forming the s993929@alle 'me b-emoloyell for shock and vibration and so prevent breakageanddisintegration of the concrete subbed. effect a transversereinforcementjmember for the concrete' foundation or road bed. So longas the concrete road bed remains intact it functions as a singleenlarged sleeper or support Which distributes trafc pressure throughoutthe entire Width of the road bed. If subjected to'ordinary trafficshocks and the impact of car Wheels, such concrete road bed is liable tomore or less breakage and disintegration. vThe skeleton structure of thepresent tie, not only serves to reinforce and tie together the concreteroad bed, enabling it to resist breakage, but the resilient blocks atopposite ends of the tie structure upon which thesleeper platessupporting the track rails rest, serve to cushion and absorb the shocksand vibration thereby protecting the concrete foundation against such lspaced relation with their horizontal flanges inwardly directed onetoward the other. Located adjacent to the opposite ends of the bars land resting uponV the inturned flanges areresilient blocks 2-2. Theseblocks are formed from anysuitable resilient material. The most suitableand practical for commercial production at the present time is asphaltintermued with a suitable filler, such vas asbestos, saw dust, marbledust or other material which Will form with the asphalt a form retainingmixture.. rlhis mixture is preferably such that it may be molded inblocks, either under pressure or in the pres` ence of heat. "Theessential idea is to give to the body.T sufficient rigidityYtofenable-it to be assembled in the skeleton tieand to be handled 1nshipment and installation Without breaking, yet Without destroying itsresiliency when under load. The quantity of filler and decreasedresiliency is` somewhat compensated for byv making the block, of

The tie in such installa-tion becomes inv greater thickness than thestratum of semif'luid'asphalt employed in the constructions beforereferred to. Y

The top of the block 2 is preferably chamfered to receive the marginalflanges 3 of the recessed cap or sleeper plate 4. The marginal edges ofthe sleeper plate 4 are substantially flush with thesides and ends ofthe resilient block 2. In lieu of providing a recessed cap or sleepermember 4, a simple flat Vmetallic plate 5 agreeing in length and-widthwith the dimensions of the block may be employed as shown in Fig. 5.

The block and sleeper are interconnected with the angle bars l-l bybolts 6 extending through corresponding holes in the respective members.The samerbolts 6 carry at their upper ends clamp members 7 for securingthe track rails 8 to the tie structure. The completely assembled tiesare supported over the road bed at the established grade, and a body ofconcrete 9 is .poured around and beneath the skeleton ties embeddingsuch tie structures' in the concrete body. A convenient method ofinstallation successfully employed is to attach the track rails directlyto the ties With the ties properly spaced, and then level the trackrails at the established grade upon temporarysupports while the`concrete is being deposited. The

preformed blocks l 2 of resilient material` form. cores'` around whichthe concrete flows,

thus making the concrete and resilient bodies conform accurately vtoeach other, and the body of resilient material accurately and completelyfills the pocket or recess thus formed in theconcrete body. .The sleeperico plates v4. and 5 beingthesame size as theV blocks of resilientmaterial, also accurately fit the pockets or recesses in the concretefor which they form closure lids to prevent the escape ofthe resilientmaterial` Alone the blocks 2 would not support the Weight of trafc norwithstand theV shocks incident thereto. However once embedded in theconcrete they are confined and supported against distortion, and are soenabled to yieldingly support. the imposed Weight-s and pressure andwithstand the shocks. The sleeper plates being supported Wholly by theenclosed body of resilient material and independent of the concrete arefree for slight vibratory movement verticallyv against the yieldingresistance of the confined body 2. tFitting closely y within the recessin the concrete body the sleeper plates effectually prevent the oozingVof the material veven in warm weatherand under heavy traffic pressure.One of the difficulties encountered in the early attempts to vemployasphalt or like material for cushioning effects'in railway ties Was thetend-1v v ency for the material to ooze out of the receptacle whensubjected to heavy pressure' This tendency was especially prevanecessarywhen.Y a semi-:fhiiidfbody 021i asphalt,

W'hile asphalt intermiisedfj inert. mat.v ,ter is' described as theprefnrabl,eiYresilient;l materia-l, it is to: be. undarstootbthat/.f`'otih material? possessing theL requisite chagiantere,

istics of being resilient, and retaining. forni under ordinaryconditions, may be substitutedt Azlso.. while;` angle bars afford aconvenient form of stock material readily obtainable for interconnectingthe blocks and forming the reinforcement, other shapes of bars or tierods may be employed.

From the above description it will be ap-l parent that there is thusprovided a device of the character described, possessing the particularfeatures of advantage before enumerated as desirable, but whichobviously is susceptible of modification in its form, proportions,detail construction and arrangement of parts without departing from theprinciple involved or sacrificing any of its' advantages.

While in order to comply with the statute the invention has beendescribed in language more or less specific as to structural features,it is to be understood that the invention is not limited to the specificdetails shown, but that the means and construction herein disclosedcomprises the preferred form of several modes of putting the inventioninto effect, and the invention is, therefore, claimed in any of itsforms or modifications within the legitimate 'and valid scope of theappended claims. Y

Having thus described my invention, I claim:-

l. In a railway track construction, a plurality of spaced blocks ofresilient material having insufficient strength to withstand trafiicimpact shocks, but being sufficiently strong to retain their form duringinvestment in a body of concrete, tie bars connecting the blocks -inpairs, sleeper members resting upon the spaced resilient blocks, and abody of concrete molded in situ about saidV blocks and bars wherein theblocks are utilized as cores which form in the concrete body recesses towhich the blocks of ,material conform, said sleeper members beingsupported by the embedded resilient blocks independent of othersupporting means.

2. In a railway track construction, a body of concrete, Vmolded bodiesof resilient material having sufficient solidity t0 retain their ferm;@dehesa-embedded in; the concreta but lreujeieaily te latam their: whermeantime, the pressure Ofinasienaztrafw, recssseafelmediathe C011'-Y@wie bada Wifi-lm'Wlilisthehloelss` Closely r @Marmi 'and sleeper-yplates- .resting-f anon@ the embedded( bodies. Ot resilient material:mdapelideat et; other Supporting means 3: The herein:` desribedf.method: @t rail:

way trafila @erstellst-ions, Censis-biagi ie forming blocks of resilientmaterial--lifavil'ig-rfhacharacteristics of soldifl asphalt, eni-Iileywg preformed-.blo @ks ascolta pouringfa of?dinars/11eA about: SaidCor-,Gs and mf intimateicontaettherewdthi measure-.close .ftheresilientaeores Withinithe Cencretebady, said@ ianaliaddedI cones andSupporting. track. milsuipon the-.Sleepermembers., V 4. The hereindescribed method of railway track construction consisting iii providingbodies of resilient material of such consistency as to retain theirforms duringeneasement but normally insufiicientlystrong to resisttraffic pressure when unconfined, utilizing said bodies as cores andpouring a body of self hardening material thereabout in direct contactwith said cores thereby embedding the cores in close conformity with thesurrounding body, resting sleeper members upon said cores and supportingtrack rails upon said sleeper members. Y

5. In .a railway track construction, tie bars arranged transversely ofthe track structure, sleeper plates interconnected in spaced relationwith the tie bars, preformed bodies of resilient material interposedbetween the tie bars and sleeper plates and utilized as cores in theformation of a concrete body thereabout, and a body of oo ncrete pouredin situ about said core blocks and in direct contact therewith in whichsaid resilient core blocks and tie bars are embedded, and track railssupported upon said sleeperplates.

6.` In a railway track construction, track rails, sleeper plates uponwhich the track rails rest, tie bars interconnecting` the sleeper platesone ,withl another in pairs, .bodies of resilient material locatedbeneath the sleeper plates and a body of concrete Zigi nestingfsleenerimemhersillnani in which the bodies of resilient material are' embedded.

7. In a railway track construction, a plurality of preformed bodies ofresilient material interconnected one with another having thecharacteristics of solidified asphalt, and

rest including a preformed block of re? silient material of insucienttensile strengthV to alone withstand the pressure of traffic passingover the rail, and a body of concrete or the like molded in situ aboutsaid block as a core,` whereby'the molded body closely conforms to theshape of the Vcore block and coniinessaid block against distortionanddisintegration under traffic pressure upon the rail which issupported upon said block.

9. VIn a railway construction of the character described, a body ofconcrete havingA a pocket formed therein, la body of resilient materialsubstantially filling the pocket, and a metallicfsleeper plate vrrestingupon the body of resilient material and extending below the surfaceV ofthe concrete body Vforming a closurefor the pocketfre'efor-vibraindependent of engagement with the conv crete body, `saidsleeperplate in turn sup-v porting a track rail'.`

l0. In a railway construction of the character described, a body ofconcrete having a pocket formed therein, afilling of resilient materialWithinrthe pocket, and an inverted pan shaped sleeper plate enclosingthe upper portion of the filling of resilient material and extendingWithin the pocket for free vertical vibratory movement independent ofthe'concrete body. y

, In testimony'whereof, I have hereuntorset my hand this 3rd dayoff'August A; D. 1925. f

RALPH J. WELLS.:

